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Missouri Gun Charges Defense
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Missouri Gun Charges Defense: UUW, Felon in Possession, and Armed Criminal Action
If you've been charged with a gun offense in Missouri, you're dealing with some of the most serious charges in the state criminal code. Missouri gun charges carry lengthy prison sentences, mandatory minimums, and consequences that can follow you for life. The charges most often filed in St. Louis, St. Louis County, St. Charles County, and Metro East Illinois fall into three categories: Unlawful Use of Weapons (UUW) under RSMo § 571.030, Unlawful Possession of a Firearm under RSMo § 571.070, and Armed Criminal Action (ACA) under RSMo § 571.015. Understanding what the State has to prove and where a defense actually exists is the difference between years in prison and walking out of that courtroom.
Wayman Law Group defends gun cases throughout the St. Louis area, including St. Louis City, St. Louis County, St. Charles County, Jefferson County, and Metro East Illinois. Call (314) 400-9811 or contact us online to discuss your case for free.
What Is Unlawful Use of Weapons in Missouri?
Missouri's unlawful use of weapons statute, RSMo § 571.030, covers eleven separate prohibited acts, each with its own penalty. A person commits UUW if they knowingly carry a concealed weapon into a restricted area, discharge a firearm into a dwelling, exhibit a weapon in an angry or threatening manner, possess a firearm while also possessing felony-weight controlled substances, or shoot at or from a motor vehicle, among other acts. The critical word in every UUW charge is "knowingly." The State must prove you were aware of what you were doing.
UUW Penalties: How Serious Is the Charge?
The penalty depends on which subdivision is charged. The most serious UUW charge is subdivision (9), shooting at or from a motor vehicle or at a person, building, or vehicle. That is a Class B felony carrying 5 to 15 years. If someone is injured or killed, it becomes a Class A felony, punishable by 10 to 30 years or life imprisonment. First-time violations of subdivision (9) require a sentence at the maximum Class B term of 15 years. Prior or persistent offenders face even steeper mandatory minimums.
Other common UUW charges and their classifications include:
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Exhibiting a weapon in an angry or threatening manner (subdivision 4): Class E felony, up to 4 years
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Discharging a firearm into a dwelling (subdivision 3): Class E felony, up to 4 years
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Possessing a firearm while possessing felony-weight drugs (subdivision 11): Class E felony, up to 4 years
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Carrying a concealed weapon into a restricted area (subdivision 1): Class B misdemeanor, up to 6 months
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Carrying a firearm into a school (subdivision 10): Class A misdemeanor if unloaded, Class E felony if loaded
Important note on suspended sentences: Under RSMo § 571.030, no one who pleads or is found guilty of a felony UUW violation can receive a Suspended Imposition of Sentence (SIS) if they have previously received an SIS for any other firearms- or weapons-related felony. If you have that kind of prior history, the sentencing stakes are even higher.
What Are the Defenses to a UUW Charge?
The most significant defense to most UUW charges is self-defense under RSMo § 563.031. Subdivisions (3) through (10) of the UUW statute expressly do not apply to persons engaged in a lawful act of defense. Missouri has a strong self-defense framework, including a castle doctrine that permits the use of deadly force against any unlawful entry into a home, residence, or vehicle without a duty to retreat. The Missouri Supreme Court confirmed in State v. Straughter, 643 S.W.3d 317 (2022) that the castle doctrine allows deadly force based solely on unlawful entry, without requiring that the threat rise to the level of a forcible felony.
Concealed carry permit holders are exempt from subdivisions (1), (8), and (10) of the UUW statute. Missouri's constitutional carry law also exempts persons 19 and older from subdivision (1) when transporting a lawfully possessed concealable firearm in the passenger compartment of a motor vehicle.
Missouri courts have also held that whether a weapon was loaded or functional does not matter. Under State v. Wright, 382 S.W.3d 902 (Mo. 2012), a firearm is presumed to be a weapon readily capable of lethal use without proof that it was operational. The threat element in a subdivision (4) exhibiting charge is evaluated objectively, based on how the conduct appeared, not on what the victim subjectively felt.
One more critical rule on subdivision (4): under State v. Horne, 710 S.W.2d 310 (Mo. Ct. App. 1986), a single act of exhibiting a weapon to multiple people is one offense, not multiple. You cannot be convicted of the same single act more than once.
What Is Felon in Possession of a Firearm in Missouri?
Under RSMo § 571.070, it is a crime for a convicted felon to knowingly possess any firearm. The two elements the State must prove are: (1) that you knowingly had a firearm in your possession, and (2) that you had a prior felony conviction. Critically, the State does not have to prove you knew you were a convicted felon. Missouri courts have consistently held that the "knowingly" element applies only to the act of possession itself, not to your awareness of your own felony status. State v. Purifoy, 495 S.W.3d 822 (Mo. Ct. App. 2016); State v. Fikes, 597 S.W.3d 330 (Mo. Ct. App. 2019).
Penalties for Unlawful Possession of a Firearm
Unlawful possession of a firearm is a Class C felony, carrying 3 to 10 years under RSMo § 558.011. If you have a prior conviction for a "dangerous felony" as defined in RSMo § 556.061(19), or a prior conviction specifically for unlawful possession of a firearm, the charge is elevated to a Class B felony, carrying 5 to 15 years. Armed criminal action itself is classified as a dangerous felony, which means a prior ACA conviction triggers the Class B elevation on any new gun possession charge. Prior and persistent offender status under RSMo § 558.016 can further elevate the sentencing range by one full class.
Convictions under RSMo § 571.070 are permanently ineligible for expungement under RSMo § 610.140. If you are convicted, it stays on your record. That makes fighting the charge, or reaching the best possible resolution, all the more important.
How Does the State Prove Possession?
Possession can be actual or constructive. Actual possession means the gun was on your person. Constructive possession means the State argues you had the power and intent to exercise control over the firearm, even if you did not physically have it. Under RSMo § 556.061(38), possession may be joint, meaning more than one person can be charged for the same gun.
Courts look at circumstantial evidence to establish constructive possession: your proximity to the firearm, whether it was within easy reach, whether your personal items were found near it, whether you made false statements to police, and whether you were nervous during the encounter. The Missouri Supreme Court's 2026 decision in State v. Rogers, 728 S.W.3d 443 (Mo. 2026) eliminated the prior requirement that the State produce "additional incriminating circumstances" in joint possession cases, making constructive possession easier to prove. That makes challenging the evidence at every step more important.
Where the gun was not found on your person, every link in the constructive possession chain is a potential point of attack. Were other people present who also had access? Was the gun in a shared space? What connection, if any, did the State actually prove between you and that specific firearm?
What Is Armed Criminal Action in Missouri?
Armed criminal action under RSMo § 571.015 is not a standalone charge. It attaches whenever any felony is committed by, with, or through the use of a deadly weapon or dangerous instrument. A conviction for ACA carries a separate sentence that is mandatory and consecutive to the predicate felony sentence. You serve the ACA time after you finish the underlying charge, not at the same time. The sentences cannot be run concurrently. RSMo § 571.017 expressly authorizes this cumulative punishment, and Missouri courts have repeatedly upheld it.
ACA Penalties and Mandatory Minimums
ACA is an unclassified felony. The tiered sentencing structure based on offense number is:
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First ACA offense: 3 to 15 years (5-year minimum if the firearm was unlawfully possessed). No parole for 3 calendar years.
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Second ACA offense: 5 to 30 years (15-year minimum if the firearm was unlawfully possessed). No parole for 5 calendar years.
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Third or subsequent ACA offense: 10-year mandatory minimum (15-year minimum if unlawfully possessing). No parole for 10 calendar years.
A prior ACA conviction is itself a "dangerous felony" under RSMo § 556.061(19), which means it counts as a prior dangerous felony for purposes of elevating any future unlawful possession charge to Class B and qualifying the defendant as a persistent offender. Each separate predicate felony supports a separate, independently punishable ACA count.
What Defenses Exist for Armed Criminal Action?
The most important defense principle for ACA is the actual use requirement. The Missouri Supreme Court held in State v. Reynolds, 819 S.W.2d 322 (Mo. 1991) that the mere intention to use a weapon, without actual use in committing the underlying felony, is not enough to support an ACA conviction. The weapon must have been actively employed in carrying out the crime. If the firearm was present but not used in furtherance of the predicate offense, ACA cannot stand.
There is also a merger limitation that defense counsel must scrutinize carefully. Under RSMo § 571.015(4), and as confirmed by the Missouri Supreme Court in State ex rel. Green v. Moore, 131 S.W.3d 803 (Mo. 2004), ACA cannot be predicated on a UUW charge under subdivision (4), exhibiting a weapon in an angry or threatening manner, when the same act of exhibiting is the only basis for the "use" element of the ACA charge. If the State has charged ACA on top of a subdivision (4) UUW and both rest entirely on the same conduct, that ACA count should not survive.
Fourth Amendment Issues in Missouri Gun Cases
A large number of gun charges in the St. Louis area arise from traffic stops. Before trial, every search that turned up the gun needs to be examined. Was the stop lawful? Did the officer have the reasonable articulable suspicion required for a Terry stop, and separate from that, the independent reasonable suspicion that you were armed and dangerous before any frisk?
The automobile exception permits a warrantless search of a vehicle if officers have probable cause to believe the vehicle contains contraband, weapons, or evidence of a crime. Missouri courts confirmed this in State v. Richardson, 313 S.W.3d 696 (Mo. Ct. App. 2010). But the Supreme Court in Collins v. Virginia, 584 U.S. 586 (2018) held that the automobile exception does not extend to a vehicle parked within the curtilage of a home.
The plain view doctrine allows seizure of a firearm that is visible during a lawful encounter, but the incriminating character of the item must be immediately apparent. Under Missouri suppression practice, motions to suppress must be filed and heard before trial. If an objection is raised at trial rather than through a pretrial motion, the burden shifts to the defendant.
Collateral Consequences of a Missouri Gun Conviction
A felony gun conviction in Missouri does not just mean prison time. The long-term consequences can include:
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A permanent federal firearms disability under 18 U.S.C. § 922(g)(1), which bars firearm possession for life. Any Missouri felony with a possible sentence over one year triggers this disability.
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Permanent ineligibility for expungement. Convictions under RSMo §§ 571.020, 571.060, and 571.070 cannot be expunged under Missouri law. ACA convictions, as dangerous felonies, are also permanently ineligible.
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Loss of a concealed carry permit. A conviction for a crime punishable by more than one year disqualifies you from obtaining or keeping a Missouri CCW permit under RSMo § 571.101.
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Immigration consequences. For non-citizens, intentional firearms offenses frequently qualify as crimes involving moral turpitude or aggravated felonies under federal immigration law, triggering deportability.
Sufficiency of the Evidence and Motions for Acquittal
Missouri appellate courts review sufficiency of the evidence by viewing all evidence and inferences in the light most favorable to the verdict and asking whether a reasonable factfinder could have found guilt beyond a reasonable doubt. State v. Shoemaker, 675 S.W.3d 672 (Mo. Ct. App. 2023). That is a deferential standard, but it is not toothless. Courts have granted motions for judgment of acquittal when the State charged the wrong conduct under the wrong subdivision.
The clearest example is State v. Goddard, 34 S.W.3d 436 (Mo. Ct. App. 2000), where the court reversed a UUW conviction because the evidence showed the defendant fired a gun from within a dwelling, not into a dwelling as required by subdivision (3). Firing from inside and firing into are legally distinct facts. That kind of statutory precision can make the difference between a conviction and an acquittal.
Talk to a Missouri Gun Charges Defense Attorney Today
Missouri gun charges are not cases to approach without serious legal help. The sentencing exposure is real, the mandatory minimums are severe, and the collateral consequences last far beyond any sentence served. Wayman Law Group defends gun charges throughout St. Louis City and County, St. Charles County, Jefferson County, and Metro East Illinois. Managing Partner Matt Wayman is licensed in both Missouri and Illinois state and federal courts.
Call (314) 400-9811 or contact us online to schedule a free consultation. The sooner you get an attorney involved, the more options you have.
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